When you submit a new word or phrase to UrbanDictionary and immediately (or eventually) many other authors make a definition for it as well that is usually a horrible spin-off, a wrong version of it, or generally the same thing - they're trying to take credit for it. Usually happens to those that are deemed "word of the day". Also - irony points if it happens to this.

John: I submitted that word I made up to UrbanDictionary yesterday and immediately these three fags 'coincidentally' submitted the same word.